* {
    margin: 0;
}

body {
    background: linear-gradient(to bottom, #303030, #3d3d3d);
    color: white;
    min-height: 100vh;
}

.calc {
    display: flex;
    flex-direction: column;
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
}

.calc input {
    padding: 10px;
    margin: 5px 0;
    border-radius: 10px;
}

.calc label {
    font-size: 30px;
}

.calc button {
    padding: 10px;
    margin: 5px 0;
    background-color: #929090;
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
}

#result {
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    font-size: 30px;
}